fattureCCSR: added filepicker and filedialog for input and output files. Started working on exceptions handling.

Signed-off-by: Ettore Dreucci <ettore.dreucci@gmail.com>

converter.py

@@ -1,10 +1,13 @@
-"""This script ask for an input file and an output file and generates the TRAF2000 records from a .csv or .xml"""
+"""ask for an input file and an output file and generates the TRAF2000 records from a .csv or .xml"""
 
+import os
 import datetime
 import csv
 import xml.etree.ElementTree
 import unidecode
 
+import exc
+
 def import_csv(csv_file_path):
     """Return a dict containing the invoices info"""
     fatture = dict()
@@ -89,8 +92,18 @@ def import_xml(xml_file_path):
     return fatture
 
 
-def convert(fatture, out_file_path):
+def convert(input_file_path, out_file_path):
     """Output to a file the TRAF2000 records"""
+    input_file_ext = os.path.splitext(input_file_path)[1]
+    if input_file_ext == ".csv":
+        fatture = import_csv(input_file_path)
+
+    elif input_file_ext == ".xml":
+        fatture = import_xml(input_file_path)
+
+    else:
+        raise exc.WrongFileExtension("Expected .csv or .xml but received " + input_file_ext)
+
     with open(out_file_path, "w") as traf2000_file:
         print("Note di credito:\n")
 

exc.py

@@ -0,0 +1,7 @@
+"""Define Python user-defined exceptions"""
+
+class Error(Exception):
+    """Base class for other exceptions"""
+
+class WrongFileExtension(Error):
+    """Raised when a file extension is not accepted"""

fatture_ccsr.py

@@ -1,23 +1,27 @@
-"""This script prompts for downloading or converting to TRAF2000 from a .csv or .xml report file"""
+"""This utility is used for downloading or converting to TRAF2000 invoices from a .csv or .xml report file"""
 
-import sys
 import os
-
 import wx
 
 import converter
-import utilities
+import exc
 
 class FattureCCSRFrame(wx.Frame):
+    """main application frame"""
     def __init__(self, parent, title):
+        self.input_file_path = None
+        self.input_file_ext = None
+        self.output_file_path = None
+
         super(FattureCCSRFrame, self).__init__(parent, title=title, size=(500, 150))
         panel = wx.Panel(self)
         vbox = wx.BoxSizer(wx.VERTICAL)
         hbox1 = wx.BoxSizer(wx.HORIZONTAL)
         hbox2 = wx.BoxSizer(wx.HORIZONTAL)
 
-        self.input_file_picker = wx.FilePickerCtrl(panel, 101, "", "Seleziona il .csv o .xml", "*.csv;*.xml")
+        self.input_file_picker = wx.FilePickerCtrl(panel, 101, "", "Seleziona il .csv o .xml", "*.csv;*.xml", style=wx.FLP_DEFAULT_STYLE|wx.FLP_USE_TEXTCTRL)
         hbox1.Add(self.input_file_picker, 1, wx.EXPAND, 0)
+        self.input_file_picker.Bind(wx.EVT_FILEPICKER_CHANGED, self.file_picker_changed)
 
         self.download_btn = wx.Button(panel, 201, "Scarica Fatture")
         hbox2.Add(self.download_btn, 0, wx.ALIGN_CENTER)
@@ -26,6 +30,9 @@ class FattureCCSRFrame(wx.Frame):
         self.traf2000_btn = wx.Button(panel, 202, "Genera TRAF2000")
         hbox2.Add(self.traf2000_btn, 0, wx.ALIGN_CENTER)
         self.traf2000_btn.Bind(wx.EVT_BUTTON, self.btn_onclick)
+        self.traf2000_btn.Disable()
+
+        self.output_file_dialog = wx.FileDialog(panel, "Scegli dove salvare il file TRAF2000", defaultFile="TRAF2000", style=wx.FD_SAVE | wx.FD_OVERWRITE_PROMPT)
 
         vbox.Add(hbox1, 0, wx.EXPAND)
         vbox.Add(hbox2, 0, wx.ALIGN_CENTER_HORIZONTAL)
@@ -35,30 +42,28 @@ class FattureCCSRFrame(wx.Frame):
         self.Centre()
         self.Show()
 
+    def file_picker_changed(self, event):
+        """event raised when the input file path is changed"""
+        self.input_file_path = event.GetEventObject().GetPath()
+        if self.input_file_path in (None, ""):
+            print("ERROR: No input file selected!")
+            return
+        self.input_file_ext = os.path.splitext(self.input_file_path)[1]
+        if self.input_file_ext not in (".csv", ".xml"):
+            print("ERROR: wrong file extension: " + self.input_file_ext)
+            return
+        self.traf2000_btn.Enable()
+
     def btn_onclick(self, event):
+        """event raised when a button is clicked"""
         btn_id = event.GetEventObject().GetId()
         if btn_id == 202:
-            input_file_path = utilities.get_input_file("*.csv;*.xml")
+            if self.output_file_dialog.ShowModal() == wx.ID_OK:
-            if input_file_path is None:
+                self.output_file_path = self.output_file_dialog.GetPath()
-                sys.exit("ERROR: No input file selected!")
+            try:
-
+                converter.convert(self.input_file_path, self.output_file_path)
-            fatture_file_extension = os.path.splitext(input_file_path)[1]
+            except exc.WrongFileExtension as e:
-
+                print(e.args[0])
-            output_file_path = utilities.get_output_file("TRAF2000")
-            if output_file_path is None:
-                sys.exit("ERROR: No output file selected!")
-
-            if fatture_file_extension == ".csv":
-                fatture = converter.import_csv(input_file_path)
-
-            elif fatture_file_extension == ".xml":
-                fatture = converter.import_xml(input_file_path)
-
-            else:
-                sys.exit("ERROR: file extension not supported")
-
-            converter.convert(fatture, output_file_path)
-
 
 if __name__ == "__main__":
     app = wx.App()

traf2000Converter/README.md

@@ -1,29 +0,0 @@
-# fattureSanRossore Downloader
-
-[![MIT License](https://img.shields.io/badge/license-MIT-blue)](../LICENSE.md) [![GitHub code size in bytes](https://img.shields.io/github/languages/code-size/Noettore/fattureSanRossore)](#) [![GitHub last commit](https://img.shields.io/github/last-commit/Noettore/fattureSanRossore)](https://github.com/Noettore/fattureSanRossore/commit/master)
-
-## Getting Started
-
-These instructions will get you a copy of the project up and running on your local machine for development and testing purposes.
-
-### Prerequisites
-
-- [Python3](https://www.python.org/)
-
-### Run
-
-To run you can simply execute python script.
-It will ask for an input(.csv) and an output(TRAF2000) file.
-
-## Dependencies
-
-- [unidecode](https://pypi.org/project/Unidecode/)
-- [easygui](https://pypi.org/project/easygui/)
-
-## Author
-
-- [**Ettore Dreucci**](https://ettore.dreucci.it)
-
-## License
-
-This project is licensed under the MIT License - see the [LICENSE.md](../LICENSE.md) file for details

utilities.py

@@ -1,25 +0,0 @@
-import wx
-
-def get_input_file(wildcard):
-    """Return the input file path"""
-    _ = wx.App(None)
-    style = wx.FD_OPEN | wx.FD_FILE_MUST_EXIST
-    dialog = wx.FileDialog(None, "Scegli il .csv o .xml contenente le informazioni sulle fatture da importare", wildcard=wildcard, style=style)
-    if dialog.ShowModal() == wx.ID_OK:
-        path = dialog.GetPath()
-    else:
-        path = None
-    dialog.Destroy()
-    return path
-
-def get_output_file(default_output_filename):
-    """Return the output file path"""
-    _ = wx.App(None)
-    style = wx.FD_SAVE | wx.FD_OVERWRITE_PROMPT
-    dialog = wx.FileDialog(None, "Scegli dove salvare il file TRAF2000", defaultFile=default_output_filename, style=style)
-    if dialog.ShowModal() == wx.ID_OK:
-        path = dialog.GetPath()
-    else:
-        path = None
-    dialog.Destroy()
-    return path